عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
LA4bd8f9kc
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
Monitoring shows vegetation change at multiple scales
نام عام مواد
[Article]
نام نخستين پديدآور
Merenlender, Adina M.; Heise, Kerry L.; Bartolome, James; Allen-Diaz, Barbara H.
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
Several historical data sets from the UC Hopland Research and Extension Center (HREC) provide valuable information on vegetation dynamics at multiple spatial and temporal scales. An early botanical survey by Harold Heady and Al Murphy provides a baseline for examining landscape-level changes in species richness and distribution over 50 years. We conducted a floristic survey between 1995 and 1999 and found gains and losses of native and non-native species abundance across the field station. On two sites where sheep were removed in 1958, permanent transects provide valuable information about plant community responses to protection from livestock grazing; in the oak understory, native perennial blue wildrye increased steadily, while in grasslands native purple needlegrass was less abundant after 43 years. On a cleared watershed, originally diverse in hardwood species, we found that only interior live oak and coast live oak were significantly reestablished after 30 years.
مجموعه
تاريخ نشر
2001
عنوان
California Agriculture
شماره جلد
55/6
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
عنصر شناسه اي
Merenlender, Adina M.; Heise, Kerry L.; Bartolome, James; Allen-Diaz, Barbara H.
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب اطلاعات رکورد کتابشناسی
نوع ماده
[Article]
کد کاربرگه
275578
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
