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Agricultural Research Service (ARS) cov kws tshawb fawb nyob hauv Boise, Idaho, tau siv cov nyuj nyuj ua ib qho cuab yeej siv los tawm tsam cov nyom nyom thiab txo cov kev pheej hmoo hluav taws kub nyhiab thoob plaws thaj tsam sab hnub poob. Qhov kev pib no, ib feem ntawm Long-Term Agroecosystem Research (LTAR) Network, ntiav cov kws qhia noj zaub mov los tswj cov kab mob phem xws li cheatgrass thiab medusahead, txhawm rau txhim kho thaj chaw txuag thiab txo cov hluav taws kub ntau zaus.
Restoring Rangelands nrog Prescribed Grazing
Txoj haujlwm, ua los ntawm Northwest Watershed Research Center, tsom mus rau kev siv cov kev tswj xyuas yooj yim los kho cov thaj chaw puas tsuaj. Cheatgrass thiab medusahead, uas muaj nyob rau hauv Great Basin thiab lwm thaj tsam sab hnub poob, yog cov nplaim taws heev thiab ua rau muaj hluav taws kub nyhiab rau hauv megafires ntawm 100,000 daim av lossis ntau dua. Raws li Pat Clark, tus kws tshawb fawb ntawm ARS rangeland, cov nyom nyom nyom no ua rau muaj teeb meem loj los ntawm kev nce qhov zaus thiab qhov hnyav ntawm cov hluav taws kub.
Los ntawm kev ua raws li cov kev cai grazing, ARS cov kws tshawb fawb tau coj cov nyuj noj cov nyom nyom ntawm qhov chaw tshwj xeeb thiab lub sijhawm. Qhov kev xyaum no yog tsim los txo qhov muaj cov nyom txhua xyoo thiab pab txhawb kev rov qab los ntawm cov nroj tsuag uas xav tau, xws li perennial bunchgrasses thiab sagebrush. Txoj hauv kev tsis yog tsuas yog pab tiv thaiv hluav taws kub hnyiab xwb tab sis kuj txhawb nqa kev txuag thaj tsam thaj chaw.
High-Intensity Low Frequency (HILF) Grazing and Targeted Projects
Pab pawg ARS siv ib txoj hauv kev hu ua High-Intensity Low Frequency (HILF) grazing, uas sib piv nrog ntau cov kev ua liaj ua teb. Cov txheej txheem no suav nrog kev ua liaj ua teb tsis tu ncua tab sis hnyav los tswj cov kab mob nkag mus thiab txhawb nqa ecosystem rov qab. Tsis tas li ntawd, ARS tau koom nrog hauv cov phiaj xwm phiaj xwm phiaj xwm phiaj xwm tsim thiab tswj cov roj tawg los tiv thaiv cov zej zog thiab cov peev txheej ntuj los ntawm cov hluav taws kub nyhiab.
Ib qho tseem ceeb pib pib nyob rau hauv 2017, koom tes nrog western nyuj ranchers thiab lub Bureau of Land Management. Qhov project tsib xyoos no, xaus rau xyoo 2023, tau soj ntsuam qhov ua tau zoo ntawm kev tsom mus rau kev noj nyuj nyob hauv Great Basin cheeb tsam ntawm Idaho, Nevada, thiab Oregon. Txawm hais tias qhov project tshwj xeeb no tau tas lawm, ARS tseem ua haujlwm nrog cov tsiaj nyeg thiab cov neeg cog qoob loo los tsim cov kev coj ua kom ruaj khov rau kev khaws cia thiab rov ua dua US rangelands.
Kev sib koom tes tsis tu ncua thiab cov lus qhia yav tom ntej
Kev siv zog txuas ntxiv los ntawm ARS thiab nws cov neeg koom tes yog qhov tseem ceeb rau kev noj qab haus huv mus sij hawm ntev thiab kev ruaj ntseg ntawm thaj chaw ecosystems. Los ntawm kev sib koom ua ke nyuj grazing rau hauv rangeland tswj cov tswv yim, ARS tab tom hais txog ob qhov kev sib tw ntawm cov kab mob nkag mus thiab muaj kev phom sij rau hluav taws kub nyhiab, pab txhawb kev txhim kho ib puag ncig zoo thiab ecosystem resilience.
